Abstract
Hearing and vestibular function tests were performed before and after hemodialysis in 14 patients with renal failures. In 3 cases, transient hearing disturbances at 4, 6 and 8kHz were observed after hemodialysis. In 2 of them, hyper-lipidemia were detected. Peripheral positional nystagmus was observed in 5 patients, and, after hemodialysis, it tended to change in the direction of the undermost ear. This suggest that direction changing nystagmus was caused by alteration of the specific gravity of the inner ear fluid. After hemodialysis, the optokinetic nystagmus pattern (=OKP) became worse in 3 patients, and 2 of them had episodes of hypotension during hemodialysis.
